.input-container {
  position: relative;
}

.input-box {
  display: flex;
  padding: 16px;
  border-top: 1px solid #bae7ff;
  background-color: rgba(240, 248, 255, 0.7);
}

.message-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid #bae7ff;
  border-radius: 6px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  background-color: #ffffff;
}

.message-input:focus {
  border-color: #1890ff;
}

.send-button {
  margin-left: 12px;
  padding: 0 24px;
  background-color: #1890ff;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.send-button:hover {
  background-color: #40a9ff;
}

.send-button:active {
  background-color: #096dd9;
}

.mention-list {
  position: absolute;
  bottom: 100%;
  left: 16px;
  right: 16px;
  background-color: rgba(240, 248, 255, 0.9);
  border: 1px solid #bae7ff;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(24, 144, 255, 0.15);
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
}

.mention-item {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.mention-item:hover {
  background-color: #d6eaff;
}

.mention-item .user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #1890ff;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-right: 8px;
  font-size: 12px;
}

.mention-item .user-name {
  font-size: 14px;
  color: #333;
}